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(11)

EP 1 468 138 A1

(12)

(43) Date of publication: 20.10.2004 Bulletin 2004/43 (21) Application number: 03705835.1 (22) Date of filing: 21.01.2003

(51) International Patent Classification (IPC)7: D06P 1/00, D06P 3/82, D01D 5/253 (86) International application number: PCT/US2003/001697 (87) International publication number: WO 2003/062522 (31.07.2003 Gazette 2003/31)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SI SK TR (30) Priority: 23.01.2002 US 351023 P (71) Applicant: E. I. du Pont de Nemours and Company Wilmington,Delaware 19898 (US)	(72) Inventors: HARRISS, Michael, G. Cheltenham, Gloucestershire GL51 3PN (GB) JACQUES, M., L. Brockworth, Gloucestershire GL3 4HP (GB) (74) Representative: Cockerton, Bruce Roger et al Carpmaels & Ransford,43-45 Bloomsbury Square London WC1A 2RA London WC1A 2RA (GB)